LHR - EYW

£540 Find Cheap Flights from London Heathrow Airport to Key West – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
£540
Typical prices: £549-£758
United Airlines
Mon 5/3Fri 9/3
LHR - EYW • 1 stop
Direct flights
Not available
There are currently no direct flights between London Heathrow Airport and Key West. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
August
Cheapest • 31% price drop
November
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Newark (EWR)
Cheapest • Avg £422 (return)
Miami (MIA)
Shortest trip • 12h 36m (one-way)
Insights
Insights
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We hope you enjoy your trip to Key West!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Heathrow to Key West (LHR-EYW)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Heathrow to Key West

Fri, 5 Mar - Tue, 9 Mar
United Airlines Logo
07:40 - 11:11LHR  London Heathrow-EYW Key West
32h 31m1 stop Chicago O'Hare Intl
United Airlines Logo
16:45 - 07:40EYW  Key West-LHR London Heathrow
33h 55m1 stop Houston George Bush Intcntl
£540United Airlines
Fri, 5 Mar - Tue, 9 Mar
United Airlines Logo
07:40 - 11:11LHR  London Heathrow-EYW Key West
32h 31m1 stop Chicago O'Hare Intl
United Airlines Logo
16:45 - 06:20EYW  Key West-LHR London Heathrow
32h 35m2 stops Houston George Bush Intcntl Newark
£540United Airlines
Fri, 5 Mar - Tue, 9 Mar
United Airlines Logo
10:25 - 11:11LHR  London Heathrow-EYW Key West
29h 46m1 stop Chicago O'Hare Intl
United Airlines Logo
16:45 - 07:40EYW  Key West-LHR London Heathrow
33h 55m1 stop Houston George Bush Intcntl
£541United Airlines
Fri, 5 Mar - Tue, 9 Mar
United Airlines Logo
10:00 - 15:55LHR  London Heathrow-EYW Key West
34h 55m1 stop Houston George Bush Intcntl
United Airlines Logo
16:45 - 21:20EYW  Key West-LHR London Heathrow
23h 35m2 stops Houston George Bush Intcntl Newark
£541United Airlines
Sat, 6 Mar - Sat, 13 Mar
United Airlines Logo
12:00 - 17:07LHR  London Heathrow-EYW Key West
34h 07m1 stop Newark
United Airlines Logo
16:45 - 07:40EYW  Key West-LHR London Heathrow
33h 55m1 stop Houston George Bush Intcntl
£555United Airlines
Mon, 8 Mar - Mon, 15 Mar
British Airways Logo
06:05 - 19:08LHR  London Heathrow-EYW Key West
18h 03m2 stops Barcelona-El Prat Miami
British Airways Logo
11:30 - 11:30EYW  Key West-LHR London Heathrow
20h 00m1 stop Miami
£613British Airways
Mon, 8 Mar - Mon, 15 Mar
British Airways Logo
06:05 - 19:08LHR  London Heathrow-EYW Key West
18h 03m2 stops Barcelona-El Prat Miami
British Airways Logo
11:30 - 09:15EYW  Key West-LHR London Heathrow
17h 45m2 stops Miami Madrid Barajas
£619British Airways
Mon, 7 Dec - Mon, 14 Dec
British Airways Logo
11:15 - 19:30LHR  London Heathrow-EYW Key West
13h 15m1 stop Miami
British Airways Logo
11:26 - 06:45EYW  Key West-LHR London Heathrow
14h 19m1 stop Miami
£628British Airways
Mon, 8 Mar - Mon, 15 Mar
British Airways Logo
09:45 - 19:08LHR  London Heathrow-EYW Key West
14h 23m1 stop Miami
British Airways Logo
19:39 - 11:30EYW  Key West-LHR London Heathrow
11h 51m1 stop Miami
£640British Airways
Sat, 6 Feb - Wed, 10 Feb
Virgin Atlantic Logo
16:00 - 17:11LHR  London Heathrow-EYW Key West
30h 11m1 stop Atlanta Hartsfield-Jackson
Virgin Atlantic Logo
14:35 - 06:25EYW  Key West-LHR London Heathrow
10h 50m1 stop Atlanta Hartsfield-Jackson
£680Virgin Atlantic
Booking Insights

Price, demand, and travel trends for London Heathrow Airport to Key West flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

How much is a return flight from London Heathrow Airport to Key West?

Return flights from London Heathrow Airport to Key West typically range from £549 to £758. The lowest price found in the past 5 days was £540 on United Airlines.

What's the cheapest day of the week to fly from London Heathrow Airport to Key West?

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from London Heathrow Airport to Key West. It’s 11% cheaper than the average day, while Thursday is the most expensive, with prices 14% higher.

What is the cheapest month to fly from London Heathrow Airport to Key West?

•August is the cheapest month to fly from London Heathrow Airport to Key West at £442 return.
•June (£873) and July (£726) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 97% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

Find deals

Key details for London Heathrow Airport to Key West flights

Low season

July

Cheapest flight

£540
Beat the crowds with an average 58% drop in traveller numbers.
The most popular month to fly with an average 70% increase in traveller numbers.
Round-trip flight from London Heathrow Airport to Key West

When to book flights from Heathrow to Key West

Are your dates flexible? Find out the best times to travel from Heathrow to Key West based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your London Heathrow Airport to Key West flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from London Heathrow Airport to Key West?

    Two cabin classes are available on flights from London Heathrow Airport to Key West:

    • Economy class
    • First Class

  • How long is a flight from London Heathrow Airport to Key West?

    A direct flight from London Heathrow Airport to Key West takes 00m, covering 4,539 miles.

  • Do I need a passport to fly from London Heathrow Airport to Key West?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a London Heathrow Airport to Key West flight?

    Return flights from London Heathrow Airport to Key West range from £549 to £758, with an average of £642 over the past 12 months. Anything below £549 counts as a good deal.

  • Have flight prices from London Heathrow Airport to Key West changed much recently?

    Yes. Based on fares seen in the past 5 days, return flight prices on this route showed a wide range, from about £540 to £4,668. That means the highest observed fare was about 9x higher than the lowest one.

  • Which car hire options are available at Key West Airport (EYW)?

    Key West Airport (EYW) hosts 5 major car hire companies, with daily rates starting from around £21 for economy cars. Top options include:

    • Dollar
    • Hertz
    • Budget
    • Enterprise Rent-A-Car
    • Alamo

  • Which airports can I use when flying from London Heathrow Airport to Key West?

    Flights from London Heathrow Airport to Key West usually depart from London Heathrow (LHR) and arrive at Key West (EYW).

  • Which airports do connecting flights from London Heathrow Airport to Key West pass through?

    One-stop flights from London Heathrow Airport to Key West most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) – 72% of one-stop connections
    • Miami (MIA) – 24% of one-stop connections
    • Charlotte Douglas (CLT) – 1% of one-stop connections
    • Newark (EWR) – 1% of one-stop connections

  • Can I save money by using flexible dates for flights from London Heathrow Airport to Key West?

    Yes. Flexible dates can save you up to 23% on flights from London Heathrow Airport to Key West. Tuesday is the cheapest departure day at £572 return on average, while Thursday is the most expensive at £735, a difference of £163.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from London Heathrow Airport to Key West?

    Flying via Miami (MIA) gives the shortest average 1-stop total travel time of 12h 36m, compared to 12h 36m via Charlotte Douglas (CLT) and 12h 57m via Newark (EWR).

  • What is the time difference between London Heathrow Airport and Key West?

    Key West is 5 hours behind London Heathrow Airport (Eastern Time vs British Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Key West?

    Some of the most popular sights in Key West are Duval Street and Mallory Square. These are among the most viewed places in Key West on KAYAK.

Your guide to booking London Heathrow Airport to Key West flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Thursday. On this route, Tuesday flights average £572, about £163 less than Thursday fares (22% savings) based on the last 12 months.
  • If you can choose when to travel, plan your London Heathrow Airport to Key West trip for August. Fares historically average £442 return in that month – typically £431 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Key West Airport.

    • Parrot Key Hotel & Villas
    • Havana Cabana at Key West
    • Blue Flamingo Resort Key West

More options for your flight from Heathrow to Key West

Complete your trip to Key West with a hotel stay or car hire

Car hire in Key West
Hotels in Key West
Holidays in Key West